Official Notes Update
The official patch notes have been updated with more changes. Only the new changes are listed below.

Originally Posted by Zarhym
(Blue Tracker)

Dungeons & Raids
Holiday bosses (such as Ahune for the Fire Festival) will now be accessible through the Dungeon Finder.

Players must use the Dungeon Finder or speak to special holiday NPCs in the world to queue up and access these bosses.

Upon accepting a queue for any holiday boss, the party will be ported directly to the necessary area for confronting that boss.

The previous summoning criteria for these bosses have been removed. Players can queue up for and fight each World Event boss as many times as they want for any standard loot that they may drop.

All rare holiday items (such as The Horseman's Reins) will have a chance of being found in holiday-themed loot troves which will drop once for each player in the party no more than once per day, in the same manner that doing the Random Dungeon daily quest will provide a specific reward the first time it is completed in a day.

Companion Pets

The Pet Bombling and Lil' Smoky non-combat pets are no longer Bind-on-Pickup.

Chains of Ice: The ability now innately applies Frost Fever to a target.

Frost

Icy Talons: The personal haste benefit provided by this talent is no longer exclusive with other sources of melee haste. This will allow death knights to always swing 4/6/12/16/20% faster when Frost Fever is applied. Windfury Totem and the party/raid component of Improved Icy Talons still do not stack.

Unholy

Unholy Blight: In addition to its previous effects, this talent now also prevents diseases from being dispelled from victims afflicted by Unholy Blight.

Slaughter from the Shadows: Now adds 1/2/3/4/5% damage to all attacks and reduces the energy cost of Backstab and Ambush by 4/8/12/16/20, up from 3/6/9/12/15.

Waylay: The debuff from this talent can now be caused by Backstab in addition to Ambush and can be triggered by all hits from these abilities rather than just critical strikes, but the snare component is now 50%, down from 70%.

Re: Patch 3.3.3 - PTR Build 11599

chances are they are hidden because WE dont need to see them. the LFG algorithm will most likely let those who dont get kicked or abandon groups get into the random group before those who are "bad". And it would probably also take into account how often the person who initiated the kick against you tries to kick folks. Since thats just another kind of bad.